Base Difficulty

Base difficulty: Level 20 edit

Level distribution for adjective (physical_property): -1: 2 3: 1 11: 13 14: 18 17: 7 18: 19 20: 2 340: 1 355: 37 360: 1 370: 1 380: 1 420: 1 1000: 1 1010: 3 1040: 8 1050: 5 1090: 2 1120: 15 1209: 1

Per-Language Difficulty Overrides

No difficulty overrides set. The base difficulty level will be used for all languages.

Add Difficulty Override
-1 to exclude, 1-1299 for level
Frequency and Tier Signals
Combined Frequency Rank: — (run python -m storage.admin --calc-ranks to populate)
Tier Signals
Source Tier Rank used
cambridge_yle Starters (1 of 3) 325

Rank used = synthetic rank this tier contributes to the combined frequency rank (lower = more common).

Corpus Frequency
Corpus Freq (per M) Best form Share Zipf rank Forms
19th_books 267.99 273 67% 410 downrated 1
20th_books 274.35 277 67% 416 downrated 1
wiki_math 412.56 210 67% 315 downrated 1
wiki_geography 153.78 510 67% 765 downrated 1
wiki_biology 229.32 334 67% 501 downrated 1
wiki_modern_life 258.78 263 67% 394 downrated 1
wiki_arts 154.89 506 67% 759 downrated 1
wiki_society 126.53 641 67% 962 downrated 1
wiki_linguistics 181.52 469 67% 704 downrated 1
wiki_physical_science 119.84 801 67% 1202 downrated 1
wiki_history 107.90 739 67% 1108 downrated 1
early_modern_science 184.13 389 67% 584 downrated 1
religious_translated 108.83 637 67% 956 downrated 1
cooking 138.98 645 67% 968 downrated 1
legal_scotus 129.50 661 67% 992 downrated 1
eu_parliament_debates 158.44 520 67% 780 downrated 1
openstax_science 128.04 741 67% 1112 downrated 1
openstax_society 99.45 956 67% 1434 downrated 1
wpa_life_histories 177.43 419 67% 628 downrated 1

Best form = the single best-ranked form in the corpus, share-blind — how the spelling itself ranked. Share = how much of that spelling belongs to this lemma, when several senses compete for it. Zipf rank = all the forms combined (variant spellings included), each scaled by its share, and what feeds the combined frequency rank. Combining forms improves on the best form, but a share below 100% pushes the other way and usually wins: a sense holding a small slice of a common spelling is a rare word, so its rank lands downrated below the best form — and once it falls past what the corpus can support it is capped at the rank an unlisted word would get.